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Quantitative trait loci in Two Soybean Recombinant Inbred Line Populations Segregating for Yield and Disease Resistance

J. Yuana, V. N. Njitia, K. Meksema, M. J. Iqbala, K. Triwitayakorna, My. A. Kassema, G. T. Davisb, M. E. Schmidta and D. A. Lightfoot*,a

a Dep. of Plant, Soil and General Agriculture, Southern Illinois University at Carbondale, Carbondale, IL 62901-4415
b Dep. of Biological and Allied Health Science, Bloomsburg University, Bloomsburg, PA 17815



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Fig. 1. (a) Frequency distribution of mean yield among Essex x Forrest recombinant inbred lines grouped by SCN resistance. F and E directed by arrows indicate where the mean yield of Forrest and Essex respectively fall within the distribution. (b) Frequency distribution of mean yield among Flyer x Hartwig recombinant inbred lines grouped by SCN resistance. Letters H and F directed by arrows indicate where the mean yield of Hartwig and Flyer respectively fall within the distribution.

 



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Fig. 2. (a) Flyer x Hartwig and Essex x Forrest maps for linkage group K. Yield QTL position, LOD scores and map distances are indicated. (b) Essex x Forrest map for linkage groups C1 and I showing yield QTL position, LOD scores and map distances.

 


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Fig. 3. Microsatellite marker Satt326 amplified from genomic DNA, ran on a 4% agarose gel and stained with ethidium Bromide. Bulk segregant analysis of high yield pool (HY) vs. low yield pool (LY). Flyer (F) is the high yield parent and Hartwig (H) is the low yield parent.

 





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